Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jul 1, 2013
Get a refresher on navigating directories on your computer in R, and learn to load a CSV (comma-separated values) data set in the form of a "data frame" using the read.csv() function, which is a special type of data matrix. This video also introduces factor variables and explores the data in a data frame using the dim(), head(), length(), names(), and subset() functions.